1 // Copyright (C) 2007-2008 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
22 // SMESH SMESHGUI : GUI for SMESH component
23 // File : SMESHGUI_PatternWidget.cxx
24 // Author : Michael ZORIN, Open CASCADE S.A.S.
27 #include "SMESHGUI_PatternWidget.h"
32 const int Shift = 4; // shift of the point number from point
33 const int Border = 20; // border size
34 const int Radius = 3; // radius of a point
36 //=================================================================================
37 // class : SMESHGUI_PatternWidget()
39 //=================================================================================
40 SMESHGUI_PatternWidget::SMESHGUI_PatternWidget( QWidget* parent )
43 myMinU = myMinV = myMaxU = myMaxV = 0;
44 setMinimumHeight( 150 );
47 //=================================================================================
48 // function : ~SMESHGUI_PatternWidget()
50 //=================================================================================
51 SMESHGUI_PatternWidget::~SMESHGUI_PatternWidget()
55 //=================================================================================
56 // function : SetPoints()
58 //=================================================================================
59 void SMESHGUI_PatternWidget::SetPoints( const PointVector& thePoints,
60 const QVector<int>& theKeys,
61 const ConnectivityVector& theConnections )
65 myConnections = theConnections;
67 if ( myPoints.isEmpty() )
70 myMinU = myMaxU = myPoints[0].x;
71 myMinV = myMaxV = myPoints[0].y;
73 for ( int i = 1; i < myPoints.size(); i++ ) {
74 myMinU = qMin( myPoints[i].x, myMinU );
75 myMaxU = qMax( myPoints[i].x, myMaxU );
76 myMinV = qMin( myPoints[i].y, myMinV );
77 myMaxV = qMax( myPoints[i].y, myMaxV );
83 //=================================================================================
84 // function : paintEvent()
86 //=================================================================================
87 void SMESHGUI_PatternWidget::paintEvent( QPaintEvent* )
89 QPainter painter( this );
90 painter.setBrush( Qt::SolidPattern );
93 for ( int i = 0; i < myKeys.size() && i < myPoints.size(); i++ ) {
94 SMESH::PointStruct aPoint = myPoints[ myKeys[i] ];
95 QPoint aQPnt = mapCoords( aPoint.x, aPoint.y );
97 painter.drawPie( aQPnt.x() - Radius, aQPnt.y() - Radius,
98 Radius * 2, Radius * 2, 0, 360 * 16 );
99 painter.drawText( aQPnt.x() + Shift, aQPnt.y() - Shift,
100 QString::number( i+1 ) );
104 for ( int i = 0; i < myConnections.size(); i++ ) {
105 QVector<int> aCVector = myConnections[i];
107 if ( aCVector.isEmpty() )
110 SMESH::PointStruct aPoint = myPoints[ aCVector[0] ];
111 const QPoint aBeginPnt = mapCoords( aPoint.x, aPoint.y );
112 QPoint aFirstPnt = aBeginPnt, aSecondPnt;
114 for ( int j = 1; j < aCVector.size(); j++ ) {
115 aPoint = myPoints[ aCVector[j] ];
116 aSecondPnt = mapCoords( aPoint.x, aPoint.y );
117 painter.drawLine( aFirstPnt, aSecondPnt );
118 aFirstPnt = aSecondPnt;
121 painter.drawLine( aBeginPnt, aSecondPnt );
125 //=================================================================================
126 // function : mapCoords()
128 //=================================================================================
129 QPoint SMESHGUI_PatternWidget::mapCoords( const double u, const double v )
131 int aWidth = width() - 2 * Border;
132 int aHeight = height() - 2 * Border;
134 double aUBound = myMaxU - myMinU;
135 double aVBound = myMaxV - myMinV;
137 double aUScale = aWidth / aUBound;
138 double aVScale = aHeight / aVBound;
141 aUScale <= aVScale ? aScale = aUScale : aScale = aVScale;
143 double aUMiddle = ( myMaxU + myMinU ) / 2;
144 double aVMiddle = ( myMaxV + myMinV ) / 2;
146 int x = int( aWidth / 2 + ( u - aUMiddle ) * aScale + Border - Shift );
148 int y = int( aHeight / 2 + ( aVMiddle - v ) * aScale + Border + Shift );
150 return QPoint( x, y );